51356487

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9901}}^1$

素因数の和:9943

約数の個数: 32

約数和(自身を含む): 88721920

約数和(自身を除く): 37365433

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 5187, 9901, 29703, 69307, 128713, 188119, 207921, 386139, 564357, 900991, 1316833, 2445547, 2702973, 3950499, 7336641, 17118829, 51356487]

約数ペア:

[(1, 51356487), (3, 17118829), (7, 7336641), (13, 3950499), (19, 2702973), (21, 2445547), (39, 1316833), (57, 900991), (91, 564357), (133, 386139), (247, 207921), (273, 188119), (399, 128713), (741, 69307), (1729, 29703), (5187, 9901)]